The two most prominent species that transmit viruses areAedes aegypti and Aedes albopictus which transmit the viruses that cause dengue fever, yellow fever, West Nile fever, chikungunya, andeastern equine encephalitis, along with many other, less notable diseases. Infections with these viruses are typically accompanied by a fever, and, in some cases, encephalitis, which can lead to death. A vaccine to provide protection from yellow fever exists, and measures to prevent mosquito bites include: insecticides such as DDT, mosquito traps, insect repellents, and mosquito nets.